Alert! Danger! It's hot outside!
Keep an eye on your pets and the elderly. Try to get plenty of fluids and avoid alcohol. If you exercise outside, do so in the morning or evening. If there's a smog alert, avoid filling up before the magic hour of 6 pm and combine trips. Don't leave your ice cream in the car for very long.
Geez... if you read the newspaper or watch the TV news, one would think it never gets hot around here in the summer.